Alicia Font

University of Alicante | UA · Departamento de Ingeniería Química

The search of new renewable fuels and the interest of finding new uses for the abundant subproducts of many industrial processes have prompt Eni S.p.A to develop a technology for producing biofuels from glycerol. One of the compounds involved in this process is 2-ethyl-4-ethoxymethyl-1,3-dioxolane (PrEDO). In this paper their temperature - vapor pr...

Thermodynamically consistent phase equilibrium data at 101.3 kPa and boiling conditions were determined for the ternary systems water + Na2SO4 + 1-propanol, water + Na2SO4 + 2-propanol, water + K2SO4 + 1-propanol and water + K2SO4 + 2-propanol. In contrast to the systems with Na2SO4, the salting-out effect of K2SO4 was not sufficient to split the m...

The large availability of glycerol on the market and EU directives in the field of automotive fuels prompt Eni S.p.A to develop a technology for producing biofuels from glycerol. This work focuses on determining isobaric vapor-liquid equilibrium data at different pressures of binary systems constituted by 3-ethoxy-1,2-propanediol, an intermediate p...

The existence of multiplicity in steady-state separation problems based on the use of equilibrium stage cascades has been known since the second half of the 20th century. Nevertheless, there are few textbooks -among those usually accessible to Chemical Engineering students- explaining this behavior and even when it is considered it is not deeply tr...

The phase-forming ability of KCl in propanols has been investigated, aiming to assess its utility in aqueous two-phase extraction. Equilibrium data of the different equilibrium regions (SLLV, SLV, LLV, and LV)of aqueous two-phase systems (ATPSs)of water + KCl + 1-propanol and water + KCl + 2-propanol have been determined at the boiling temperatures...

The advanced courses of Separation Processes use to include some reference to the different types of distillation curves, such as the True Boiling Point (TBP) curves, in order to characterize crude petroleum or its derivatives. The concept of pseudocomponents as well as the way to extract them from a TBP curve can be easily understood by reading cl...

The phase equilibrium of the water + NH4Cl + 2-propanol mixture, at a constant pressure of 101.3 kPa, has been determined isothermally at four temperatures, as well as at the boiling temperature. Transitions between the different regions of the isothermal equilibrium diagrams have been studied, and the lowest temperature at which the salt can split...

The liquid–liquid equilibrium of the water + 1-butanol + isoamyl alcohol system at 303.15 and 313.15 K has been determined experimentally. The UNIQUAC, NRTL, and UNIFAC models have been employed to correlate and predict liquid–liquid equilibria (LLE) and compare them with the experimental data. Additionally, the vapor–liquid and vapor–liquid–liquid...

The SLLV phase equilibria of the water + NaCl + 2-propanol mixture have been determined experimentally at 101.3 kPa by means of a modified recirculating still. The results obtained allow us to study the shape of the phase diagram of the system, to analyze the evolution with temperature of this equilibrium diagram and to show the differences with a...

The equilibrium of the ternary electrolyte system at 101.3 kPa, water + 1-propanol + ammonium chloride (NH4Cl), has been investigated at 298.15 K and at the boiling temperature to determine the shape of equilibrium surfaces and regions on the phase diagram. The data obtained have been compared with previously published experimental data showing the...

In this work, the equilibrium of the system water + 1-butanol + 2-pentanol is studied. Data for isobaric vapor–liquid (VLE) and vapor-liquid-liquid (VLLE) equilibria are obtained at a constant pressure of 101.3 kPa. The equipment used to carry out the experiments is an all-glass dynamic recirculating still, with an ultra-sonic homogenizer coupled t...

Isobaric vapor-liquid-liquid-solid equilibria for the ternary system water + sodium chloride + 1-propanol have been determined at 101.3 kPa by means of a modified recirculating still. The addition of sodium chloride to the solvent mixture results in the appearance of different equilibrium regions. A detailed quantitative analysis of the evolution w...

A mixture of water + NaCl + 1-butanol at 101.3 kPa is studied in order to determine the influence of salt on its experimental vapor–liquid–liquid–solid equilibrium. A detailed analysis of the evolution with temperature of the different equilibrium regions is carried out. The study is conducted at a constant pressure of 101.3 kPa in a recirculating...

Various hydrocarbons (n-hexane, cyclohexane, toluene, isooctane) and mixtures of them (binary, ternary or quaternary), as well as two different types of industrially produced naphtha (one obtained by direct distillation and the other from a catalytic cracking process), have been tested as candidate entrainers to dehydrate ethanol. The tests were ca...

In this work authors present the experimental liquid–liquid equilibria (LLE) data of water + ethanol + 1-butyl-3-methylimidazolium bis(trifluoromethanesulfonyl)imide ([bmim][Tf2N]) system at different temperatures. The LLE of the system was obtained in the temperature range from 283.2 to 323.2 K. The nonrandom two liquid (NRTL) and universal quasic...

We establish experimentally and through simulations the economic and technical viability of dehydrating ethanol by means of azeotropic distillation, using a hydrocarbon as entrainer. The purpose of this is to manufacture a ready-to-use ethanol-hydrocarbon fuel blend. In order to demonstrate the feasibility of this proposition, we have tested an aze...

Isobaric vapour–liquid and vapour–liquid–liquid equilibrium data for the water + 1-butanol + toluene ternary system were measured at 101.3 kPa with a modified VLE 602 Fischer apparatus. In addition, the liquid–liquid equilibrium data at 313.15 K were measured and compared with data from other authors at different temperatures. The system exhibits a...

The temperature and the composition of the vapor–liquid–liquid equilibrium (VLLE) and the vapor–liquid equilibrium (VLE) of a ternary mixture of water–n-butanol–cyclohexane were measured at atmospheric pressure (101.32 kPa) in a modified dynamic recirculating still. As found in the literature, the experimental data obtained reveal a ternary azeotro...

In this work, a very simple exercise is proposed, which can be solved “by hand”, to facilitate the understanding of the application of homotopy methods as rigorous methods for the calculation of complex multicomponent distillation operations in the context of an advanced separation process course for final year students of Chemical Engineering. The...

Repositorio Institucional RUA: http://hdl.handle.net/10045/19881

Los enunciados de los ejercicios proceden, en su mayoría, de los problemas propuestos en la bibliografía recomendada para la asignatura de Ampliación de Operaciones de Separación. Colección de ejercicios propuestos para la asignatura de Simulación y Diseño de Procesos Industriales por Ordenador

An all-glass, dynamic recirculating still equipped with an ultrasonic homogenizer has been used in the determination of the vapour-liquid equilibrium (VLE) and vapour-liquid-liquid equilibrium (VLLE). Consistent data for the ternary water + ethanol + toluene system are reported at 101.3 kPa at temperatures in the range of 347-357K. These data have...

Póster presentado en el 11th Congreso Mediterráneo de Ingeniería Química, celebrado en Barcelona del 22 al 24 de octubre de 2008. En este trabajo se ilustran, mediante la resolución de ejemplos concretos, algunas situaciones que pueden darse cuando se aplica el método de Hengstebeck para el diseño gráfico aproximado de columnas de rectificación mul...

Isobaric vapor–liquid and vapor–liquid–liquid equilibria were measured for the water–ethanol–hexane system at normal atmospheric pressure. The apparatus used for the determination of vapor–liquid–liquid equilibrium data was an all-glass dynamic recirculating still with an ultrasonic homogenizer coupled to the boiling flask. The experimental data de...

The viability of an azeotropic distillation process using 2,2,4-trimethylpentane (isooctane) as an entrainer to dehydrate ethanol and obtain a mixture of ethanol + isooctane without water is analyzed utilizing both an experimental procedure and an equilibrium-model-based simulation. The direct manufacture of this mixture of ethanol + isooctane for...

Programa de l'assignatura de Simulació i Disseny de Processos Industrials per ordinador. Curs 2007/2008. Versió en català

Programa de la asignatura de Ampliación de Operaciones de Separación. Curso 2007/2008. Versión en castellano.

Consistent vapour–liquid (VLE) and vapour–liquid–liquid (VLLE) data for the ternary system water (1) + ethanol (2) + n-heptane (3) are reported at 101.3 kPa at temperatures in the range of 341–352 K. An all-glass, dynamic recirculating still equipped with an ultrasonic homogenizer has been used in the determination of the VLLE. The experimental dat...

Continguts de l'assignatura d'Ampliació d'Operacions de Separació de 5é curs d'Enginyer Químic de la Universitat d'Alacant. Secretariat de Promoció del Valencià de la Universitat d'Alacant

Isobaric vapor–liquid (VLE) and vapor–liquid–liquid equilibria (VLLE) were measured for the ternary system water + ethanol + cyclohexane at 101.3 kPa. The experimental determination was carried out in a dynamic equilibrium still with circulation of both the vapor and liquid phases, equipped with an ultrasonic homogenizer. The experimental data demo...

Isobaric vapor−liquid and vapor−liquid−liquid equilibria were measured for the ternary system water + isopropanol (2-propanol) + isooctane (2,2,4-trimethylpentane) at 101.3 kPa. The experimental determination was carried out in a dynamic equilibrium still, with circulation of both the vapor and liquid phases equipped with an ultrasonic homogenizer....

Consistent vapor−liquid (VLE) and vapor−liquid−liquid equilibrium (VLLE) data for the ternary system water + ethanol + isooctane (2,2,4-trimethylpentane) are reported at 101.3 kPa at temperatures in the range of 341−352 K. An all-glass, dynamic recirculating still equipped with an ultrasonic homogenizer has been used in the determination of the VLL...

A system specifically designed for the analysis of volatile organic compounds in water, called the purge‐and‐trap sample concentrator, has been set up to quantify the volatile aroma constituents of fruits. The technique shows some advantages over other conventional and new methods. The quantification of the major volatile compounds (3‐methyl‐2‐bute...

RESUM (ABSTRACT) En el curso 2010/2011 se constituyó una red docente cuyo objetivo fue el seguimiento y coordinación del primer curso del Grado en Ingeniería Química, que había comenzado a planificarse un curso antes. En líneas generales, una de las principales conclusiones obtenidas a partir de dicha red, fue la idoneidad de llevar a cabo un segui...

RESUMEN Fruto de la experiencia acumulada por varios profesores del departamento de Ingeniería Química, que a su vez son tutores del plan de acción tutorial de la universidad de Alicante, surge la necesidad de desarrollar una plataforma en la que se puedan tratar distintos aspectos de interés para los alumnos, y que año tras año dan lugar a consult...

Programa de la asignatura de Simulación y Diseño de Procesos Industriales por Ordenador para el curso 2007/2008. Versión en castellano.

Se trata de unas notas que se ofrecen como apoyo para la resolución de los ejercicios y que son susceptibles de modificación, en cuyo caso se irán renovando mediante la publicación de sucesivas versiones. Apuntes correspondientes al tema 1 de la asignatura de Simulación y Diseño de Procesos Industriales por Ordenador. En su mayor parte se trata de...

Se trata de unas notas que se ofrecen como apoyo para la resolución de los ejercicios y que son susceptibles de modificación, en cuyo caso se irán renovando mediante la publicación de sucesivas versiones. Apuntes correspondientes al tema 2 de la asignatura de Simulación y Diseño de Procesos Industriales por Ordenador. En su mayor parte se trata de...

Se trata de unas notas que se ofrecen como apoyo para la resolución de los ejercicios y que son susceptibles de modificación, en cuyo caso se irán renovando mediante la publicación de sucesivas versiones. Apuntes correspondientes al tema 3 de la asignatura de Simulación y Diseño de Procesos Industriales por Ordenador. En su mayor parte se trata de...

Programa de l'assignatura. Curs 2007/2008. Versió en valencià

Se trata de una serie de notas que permiten seguir la asignatura de Ampliación de Operaciones de Separación, y que pueden sufrir modificaciones, en cuyo caso, se irán publicando sucesivas versiones. Apuntes de clase correspondientes al tema 1 de Ampliación de Operaciones de Separación.

Es tracta d'un manual on s'explica, mitjançant l'ajuda d'exemples resolts, l'ús del simulador comercial de processos químics Chemcad 5.2.0. Secretariat de Promoció del Valencià, Universitat d'Alacant; Conselleria de Cultura, Educació i Ciència; CAM

Guía docente correspondiente a la asignatura de "Simulación y Diseño de Procesos Industriales por Ordenador". Curso 2008/09.

Materiales de clase de la asignatura de "Amplicaión de Operaciones de Separación". Curso 2008/2009.